Asus K42DE - RAM Upgrade Guide
The Asus K42DE laptop has two memory slots available for RAM upgrades. It can support a maximum of 8GB of memory. The type of RAM compatible with this model is DDR3 SDRAM, and it uses a small outline dual inline memory module (SODIMM) form factor. For optimal performance, the recommended RAM clock speed is 1066MHz, also referred to as PC3-8500.
Asus K42DE Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Asus K42DE |
| Total memory slots | 2 |
| Maximum RAM | 8GB |
| Memory type | DDR3 SDRAM |
| Form factor | SODIMM (Small Outline Dual Inline Memory Module) |
| Recommended RAM clock speed | 1066MHz (PC3-8500) |
| Voltage | 1.35V - 1.5V |
| Number of pins | 204-pin |
FAQ about Asus K42DE RAM
How much RAM can I put in my K42DE laptop?
Maximum is 8GB total. You've got 2 slots, so that's 4GB per slot max. Can't go higher even if you find bigger modules.
What kind of memory do I need for this laptop?
DDR3 SODIMM - the smaller laptop memory sticks. Won't work with regular desktop RAM or the newer DDR4/DDR5 stuff.
What speed RAM should I get?
1066MHz (also called PC3-8500) is what's recommended. Might work with faster RAM but it'll just run at 1066 anyway, so save your money.
Can I mix different RAM sizes?
Yeah, you can do like 2GB + 4GB if you want. Just know that dual channel performance works better with matched pairs (like 4GB + 4GB).
Do I need to buy RAM in pairs?
Not required, but matching pairs usually run better together. If you're maxing out at 8GB, get two 4GB sticks of the same type.
Will faster RAM like 1333MHz or 1600MHz work?
It'll probably work but will downclock to 1066MHz automatically. No point paying extra for speed you can't use.